![]() ![]() ![]() ![]() The Yamaha OP元-SAx is an all-in-one sound chip, featuring SBPro2, WSS, MPU-401 and OP元 compatibility. OP元 is an abbrevation of 'FM Operator type 元'. The first soundcards equipped with an OP元 chip include the Creative Sound Blaster Pro 2 and the AdLib Gold. Normally only the first two channels are connected to a DAC (YAC512), providing crude stereo support. Twelve of these channels may be combined to form six four-operator channels.Įach channel can be routed to a maximum of 4 output channels, though there are no sound cards that actually use all four. The Yamaha OP元 (YMF262) is an extended version of the original OPL2 chip, adding an extra register base for a total of 18 two-operator channels. OPL2 is an abbrevation of 'FM Operator type L2'. This is an FM-synthesizer chip, featuring 9 two-operator channels. The Yamaha OPL2 (YM3812) is the chip used on the original AdLib card and clones.
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